Synthesis and Characterization of Heterodinuclear Ln3+−Fe3+and Ln3+−Co3+Complexes, Bridged by Cyanide Ligand (Ln3+= Lanthanide Ions). Nature of the Magnetic Interaction in the Ln3+−Fe3+Complexes

2003 ◽  
Vol 42 (2) ◽  
pp. 641-649 ◽  
Author(s):  
Albert Figuerola ◽  
Carmen Diaz ◽  
Joan Ribas ◽  
Vassilis Tangoulis ◽  
Jaume Granell ◽  
...  
Keyword(s):  
Magnetic Interaction ◽  
Lanthanide Ions ◽  
Synthesis And Characterization ◽  
Cyanide Ligand

scholarly journals Synthesis, Crystal Structures, and Spectroscopic Properties of Novel Gadolinium and Erbium Triphenylsiloxide Coordination Entities

Molecules ◽  
2021 ◽  
Vol 27 (1) ◽  
pp. 147
Author(s):  
Patrycja Wytrych ◽  
Józef Utko ◽  
Julia Kłak ◽  
Maciej Ptak ◽  
Mariusz Stefanski ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Variable Temperature ◽  
Magnetic Interaction ◽  
Spectroscopic Properties ◽  
Lanthanide Ions ◽  
Oxidation States ◽  
Crystal Field Effect ◽  
Spectroscopy Studies ◽  
Behavior Characteristics

In alkali metal and lanthanide coordination chemistry, triphenylsiloxides seem to be unduly underappreciated ligands. This is as surprising as that such substituents play a crucial role, among others, in stabilizing rare oxidation states of lanthanide ions, taking a part of intramolecular and molecular interactions stabilizing metal-oxygen cores and many others. This paper reports the synthesis and characterization of new lithium [Li4(OSiPh3)4(THF)2] (1), and sodium [Na4(OSiPh3)4] (2) species, which were later used in obtaining novel gadolinium [Gd(OSiPh3)3(THF)3]·THF (3), and erbium [Er(OSiPh3)3(THF)3]·THF (4) triphenylsiloxides. Crystal structures were determined for all 1–4 compounds, and in addition, IR, Raman, absorption spectroscopy studies were conducted for 3 and 4 lanthanide compounds. Furthermore, direct current (dc) variable-temperature magnetic susceptibility measurements on polycrystalline samples of 3 and 4 were carried out in the temperature range 1.8–300 K. The 3 shows behavior characteristics for the paramagnetism of the Gd3+ ion. In contrast, the magnetic properties of 4 are dominated by the crystal field effect on the Er3+ ion, masking the magnetic interaction between magnetic centers of neighboring molecules.

Bismuth(iii)-thiophenedicarboxylates as host frameworks for lanthanide ions: synthesis, structural characterization, and photoluminescent behavior

2018 ◽  
Vol 47 (38) ◽  
pp. 13419-13433
Author(s):  
Alyssa K. Adcock ◽  
Bradley Gibbons ◽  
Jeffrey D. Einkauf ◽  
Jeffery A. Bertke ◽  
J. Faye Rubinson ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Structural Characterization ◽  
Lanthanide Ions ◽  
Synthesis And Characterization

The synthesis and characterization of three bismuth-organic compounds, two of which are lanthanide-doped, and two europium phases are reported.

Synthesis and Characterization of the Three Dicyclopentapyrenes

1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula
Keyword(s):  
Synthesis And Characterization

Synthesis and characterization of TiN / Ti / AISI 410 coatings

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama
Keyword(s):  
Synthesis And Characterization ◽  
Photoemission Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Columnar Grains ◽  
Tin Thin Films ◽  
Steel Aisi ◽  
Interacting Surfaces ◽  
Stainless Steel Aisi

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.

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